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Integrated Services Digital Network (ISDN) is a set of communication standards for simultaneous digital transmission of voice, video, data, and other network services over the digitalised circuits of the public switched telephone network. Work on the standard began in 1980 at Bell Labs and was formally standardized in 1988 in the CCITT "Red Book". By the time the standard was released, newer networking systems with much greater speeds were available, and ISDN saw relatively little uptake in the wider market. One estimate suggests ISDN use peaked at a worldwide total of 25 million subscribers at a time when 1.3 billion analog lines were in use. ISDN has largely been replaced with digital subscriber line (DSL) systems of much higher performance.
Digital subscriber line is a family of technologies that are used to transmit digital data over telephone lines. In telecommunications marketing, the term DSL is widely understood to mean asymmetric digital subscriber line (ADSL), the most commonly installed DSL technology, for Internet access.
Telecommunications in Australia refers to communication in Australia through electronic means, using devices such as telephone, television, radio or computer, and services such as the telephony and broadband networks. Telecommunications have always been important in Australia given the 'tyranny of distance' with a dispersed population. Governments have driven telecommunication development and have a key role in its regulation.
A digital subscriber line access multiplexer is a network device, often located in telephone exchanges, that connects multiple customer digital subscriber line (DSL) interfaces to a high-speed digital communications channel using multiplexing techniques. Its cable internet (DOCSIS) counterpart is the Cable modem termination system.
Internet access is the ability of individuals and organizations to connect to the Internet using computer terminals, computers, and other devices; and to access services such as email and the World Wide Web. Internet access is sold by Internet service providers (ISPs) delivering connectivity at a wide range of data transfer rates via various networking technologies. Many organizations, including a growing number of municipal entities, also provide cost-free wireless access and landlines.
NorthPoint Communications Group, Inc. was a competitive local exchange carrier focused on data transmission via digital subscriber lines. The company had relationships with Microsoft, Tandy Corporation, Intel, Verio, Cable & Wireless, Frontier Corporation, Concentric Network, ICG Communications, Enron, Network Plus, and Netopia. The company had investments from The Carlyle Group, Accel Partners, Benchmark, and Greylock Partners.
A leased line is a private telecommunications circuit between two or more locations provided according to a commercial contract. It is sometimes also known as a private circuit, and as a data line in the UK. Typically, leased lines are used by businesses to connect geographically distant offices.
iiNet Limited is an Australian internet service provider that sells NBN plans and services on its ULTRA Broadband Cable, FTTB and VDSL2 networks. It was acquired by TPG Telecom in July 2020.
Telkom SA SOC Limited is a South African wireline and wireless telecommunications provider, operating in more than 38 countries across the African continent. Telkom is majority state-owned (55.3%) with the South African government owning 40.5% of Telkom, while another 14.8% is owned by another state-owned company - the Public Investment Corporation (PIC), which is closely linked to the South African government.
Datastream is a type of broadband network connection in the United Kingdom. Datastream is a wholesale product in which the wholesale customer can purchase connectivity between their own point of presence and a number of end users. Some authors use the term "datastream" for replacing the term dataflow to avoid confusion with dataflow computing or dataflow architecture, based on an indeterministic machine paradigm.
Frontier Communications Parent, Inc. is an American telecommunications company. The company previously served primarily rural areas and smaller communities, but now also serves several large metropolitan markets.
Whidbey Telecom is a private, independent telecommunications company operating on the South End of Whidbey Island in Washington State, the community of Point Roberts, Washington, and its affiliate Hat Island Telephone Company on Hat (Gedney) Island. Whidbey Telecom has been locally owned and operated since it started business in 1908.
Internet in Australia first became available on a permanent basis to universities in Australia in May 1989, via AARNet. Pegasus Networks was Australia's first public Internet provider in June 1989. The first commercial dial-up Internet Service Provider (ISP) appeared in capital cities soon after, and by the mid-1990s almost the entire country had a range of choices of dial-up ISPs. Today, Internet access is available through a range of technologies, i.e. hybrid fibre coaxial cable, digital subscriber line (DSL), Integrated Services Digital Network (ISDN) and satellite Internet. In July 2009, the federal government, in partnership with the industrial sector, began rolling out a nationwide fibre-to-the-premises (FTTP) and improved fixed wireless and satellite access through the National Broadband Network. Subsequently, the roll out was downgraded to a Multi-Technology Mix on the promise of it being less expensive and with earlier completion. In October 2020, the federal government announced an upgrade by 2023 of NBN fibre-to-the-node (FTTN) services to FTTP for 2 million households, at a cost of A$3.5 billion.
Internet access is widely available in New Zealand, with 94% of New Zealanders having access to the internet as of January 2021. It first became accessible to university students in the country in 1989. As of June 2018, there are 1,867,000 broadband connections, of which 1,524,000 are residential and 361,000 are business or government.
In an international context Denmark is viewed as a somewhat peculiar country when it comes to internet access. The former state owned telephone company TDC owns the entire last mile infrastructure in terms of copper telephone lines and the vast majority of the coaxial cable infrastructure as well. Even though the Danish telecommunications infrastructure is very heavily dominated by one company, Danish internet customers still enjoy fair prices and a wide availability of different next generation access internet connections in comparison with most other EU countries. Furthermore, TDCs de facto monopoly on last mile infrastructure has come under attack. In the last decade regional power companies have formed national business alliances aimed at implementing FTTH for private and business end users.
The prevalent means of connecting to the Internet in Germany is DSL, introduced by Deutsche Telekom in 1999. Other technologies such as Cable, FTTH and FTTB (fiber), Satellite, UMTS/HSDPA (mobile) and LTE are available as alternatives.
The Internet in Serbia is well developed. The Internet country code top-level domain (ccTLD) for Serbia is .rs and .срб. (Cyrillic)
In Romania, there are 18.8 million connections to the Internet. Romania's country code is .ro. The .eu domain is also used, as it is shared with other European Union member states. There were over 600 000 domains registered under .ro at the end of 2012.
Internet in India began in 1986 and was available only to the educational and research community. General public access to the internet began on 15 August 1995, and as of July 2022 there are 833 million active internet users that comprise 59.28% of the population.
The Internet in Pakistanhas been available since the early 1990s. Pakistan has about 122 million internet users, making it the 8th-largest population of internet users in the world. Information and communications technology (ICT) is one of the fastest growing industries in the country. In 2001 just 1.3% of the population used the Internet. By 2006 this figure had grown to 6.5% and in 2012 to 10.0%. As of July 2021; the percentage of internet users in Pakistan is 54%, which translates into approximately 118 million citizens having access to internet.
References
- ↑ http://www.internetnews.com/xSP/article.php/863941 Rhythms NetConnections to End Service
- ↑ "Archived copy". Archived from the original on 2009-04-26. Retrieved 2012-03-05.
{{cite web}}: CS1 maint: archived copy as title (link) $17.5M Settlement In Suit V. Rhythms Execs Gets OK - ↑ McLean & Elkind, The Smartest Guys in the Room p191